Wat Phutthaisawan appears according to the legend that King Ramathibodi I (U-Thong) built it in the area where the pavilion was located when he migrated before the establishment of Ayutthaya as a capital city. After the establishment of Ayutthaya until 1353 B.E., this temple was built as a royal memorial at the sub-district where he originally settled. and the next King Come, I would be pleased to build many more things. When losing Ayutthaya in 1767, Wat Phutthaisawan was another temple that was not destroyed like other temples. Today, there are still ancient sites to see. There are many ancient remains such as the large pagoda, the Ubosot, the Wihan, and the reclining Buddha hall. Which was built since the Ayutthaya period still appears at this temple as well at the wall of King U-Thong Palace There are paintings depicting the Jataka story and the story of Somdet Phra Buddha Kosajarn. Went to pay homage to the Buddha image in Lanka. These pictures are very beautiful but unfortunately they have been almost completely erased. At the porch of the large Phra Prang, there is King U-Thong. This image of King U-Thong was originally made into an idol during the reign of King Rama I in 1784. which commanded the Department of Phra Kochaban went out to fix the plague at Phra Nakhon Si Ayutthaya to meet So he told His Majesty King Buddha Yod Fa Chulalok Therefore, please invite that idol to come down to Bangkok and please cast a new conversion into a Buddha image covered with silver. and please have it enshrined at Phra Thep Bidon Hall. God U Thong At present, it is a new casting instead of the original one, which is a Buddha image standing on the side of the prang, not in the original location. This temple renovated the top of the prang once in the reign of King Rama V in 1898.